Maness Petroleum Corporation began in 1985 when David, along with his father Mabre Maness joined forces to explore for oil and gas. David’s brother, Tim, joined them in 1986. Since that time, they have continuously explored the Michigan Basin both for their own account and as consultants for a wide range of companies—both big and small. Throughout they have remained focused on the geoscience aspects of exploration and worked with reputable partners who are able act as operators for their exploration ventures. David and Tim are equal owners of the company which has been located in Mt. Pleasant, Michigan since its founding.